data_global _amcsd_formula_title 'Hg(NH3)2Cl2' loop_ _publ_author_name 'MacGillavry C H' 'Bijvoet J M' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 94 _journal_year 1936 _journal_page_first 231 _journal_page_last 245 _publ_section_title ; Die kristallstruktur der cadmium-und quecksilber-diammin-dihalogenide ; _database_code_amcsd 0010564 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Hg N2 Cl2' _cell_length_a 8.12 _cell_length_b 8.12 _cell_length_c 4.06 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 267.694 _exptl_crystal_density_diffrn 3.716 _symmetry_space_group_name_H-M 'C m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,y,z' '1/2-x,1/2+y,z' 'x,-y,-z' '1/2+x,1/2-y,-z' 'x,y,-z' '1/2+x,1/2+y,-z' '-x,-y,z' '1/2-x,1/2-y,z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Hg 0.00000 0.00000 0.00000 NH3 0.00000 0.25000 0.00000 Cl 0.25000 0.00000 0.50000